Apps · Offloading and restoring apps
What does Remove do on the Offloaded tab?
Short answer: Remove sends an offloaded app's archive (app and data) from your fast drive to the Trash. After that it can't be restored from Storage Studio.
Remove deletes an offloaded app's archive — the app and its archived data — from your fast drive, moving it to the Trash. After that you can't restore it from Storage Studio.
Use it when you've decided you don't want the app at all. Until you empty the Trash, the archive can still be recovered from there.